Subject to an extension of time granted upon application to the planning director no variance shall be valid for a period longer than one year unless a building permit is issued or complete building plans have been submitted to the division of building services and licensing within that period. The planning director may grant an extension of a variance for up to one additional year when the applicant is able to demonstrate no change in circumstance that would result in an unmitigated impact. Extension requests must be submitted prior to the expiration of the variance. (Ord. 11-10 § 4, 2010)